Different boards require different installation methods and an important thing to look out for in the installation instructions are the materials’ expansion co-efficient.
Some boards will expand and contract as much as 1mm with every four-degree Celsius fluctuation in temperature. In this case, special screws and fixing systems are used and spacing between boards and abutting walls are larger.
The boards can be laid straight on the dirt or on the aluminium frames that are light and easy to work with. By using the aluminium structure the boards are getting extra protection, ventilation and drainage. It also prevents the boards from cupping, moving and bending.